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Finding the Fourth Proportional to 26,979.10, 40,468.65 and 8,511.10

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Solution

The fourth proportional to 26,979.10, 40,468.65 and 8,511.10 is: 12,766.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.10 : 40,468.65 = 8,511.10 : x
  2. Step 2: Convert to fraction form
    26,979.10/40,468.65 = 8,511.10/x
  3. Step 3: Cross multiply
    26,979.10x = 40,468.65 × 8,511.10
  4. Step 4: Simplify right side
    26,979.10x = 344,432,727.02
  5. Step 5: Solve for x
    x = 344,432,727.02/26,979.10
  6. Step 6: Final answer
    x = 12,766.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.